GUIDE

Offset Printing

Offset lithography transfers ink from a flat printing plate to a rubber blanket and then to paper. It is built for controlled colour, fine detail and consistent sheet-fed production.

Full-colour business cards produced by offset printing
Offset printing supports detailed colour across a sheet

INDIRECT PRINT

The plate transfers its inked image to a rubber blanket before the paper.

PLANOGRAPHIC

Image and non-image areas share a flat plate surface and differ chemically.

COLOUR UNITS

CMYK or spot inks are carried by separate printing units and plates.

HOW IT WORKS

Plate to blanket. Blanket to paper.

Offset lithography uses a plate whose image and non-image areas are essentially on the same plane. Their different chemical properties control where ink is accepted and where it is repelled.

The plate does not print directly onto the paper. Its inked image first transfers to a flexible rubber blanket; the blanket then transfers that image to the moving sheet, which is why the process is called offset.

Each process or spot colour has its own plate and printing unit. A multi-unit press can place several colours during one passage through the press, so CMYK does not necessarily mean sending the sheet through four separate times.

Diagram of plate blanket and impression cylinders in offset printing
The rubber blanket sits between the plate and the paper

WHAT IT CHANGES

Controlled colour before specialist finishing.

Offset often supplies the printed foundation; paper and later processes determine the final character.

01

Detailed CMYK

Photographs, gradients and fine halftones can be reproduced through controlled combinations of cyan, magenta, yellow and black.

02

Purposeful spot ink

A named premixed colour can be printed when the identity calls for control beyond an ordinary CMYK approximation.

03

Repeatable sheets

Press setup, ink balance and registration are controlled across the run before cutting and specialist finishing begin.

WHEN TO USE IT

Best when printed colour carries information.

Offset suits detailed brand colour, photography, illustration and quantities where a press-made plate and controlled run are justified. It can also provide the base print for lamination, Spot UV, foil or bonded constructions.

Ink is not equally opaque on every paper. Dark, absorbent and strongly coloured stocks may call for a different ink strategy or an opaque process such as foil.

CONSIDER BEFORE CHOOSING

  • Paper colour and coating affect density, drying and perceived colour.
  • Each spot or process colour requires its own plate and controlled registration.
  • Printed sheets may need appropriate drying time before finishing.
  • Very short runs or variable data may be better served by another print process.
Printed sheets with detailed colour prepared for finishing
The printed sheet is the foundation for later cutting and finishing

ARTWORK PREPARATION

Prepare colour for a real press sheet.

Supply print-ready artwork with the required bleed, effective image resolution and final page size. Identify whether colours are CMYK builds or named spot inks, and include embedded or linked assets correctly.

Check overprint, rich-black construction and small reversed type before output. Put foil, Spot UV, embossing and cutting information on separate named layers rather than mixing them into the print image.

FINISHED WORK

Colour can remain clean—or support texture.

The process is versatile, but the premium result comes from choosing the right paper and finishing sequence.

Sheet-fed offset press producing full-colour printed work
Controlled colour across a press sheet
Vivid blue business cards with controlled silver Pantone printing and precise laser-cut openings
A controlled silver spot colour on a boldly coloured paper
Green printed business cards on textured Woodstock paper with letterpress and painted edges
Offset colour supporting paper texture, letterpress and a painted edge

CHOOSE YOUR ROUTE

Move from understanding to choosing.

Use the collection or selector for established options. Expert Recommendation is for artwork that needs the paper, process or construction narrowed first.

SELECTOR

Explore Business Card Options

Start with the business-card selector to compare printed papers, thicknesses and appropriate specialist finishes.

Explore business cards →

EXPERT RECOMMENDATION

Match the print route to the artwork

Send the design, quantity and colour requirements. We will help distinguish offset, specialist ink and finishing needs.

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THE LUXURY SAMPLE PACK

Colour changes with the paper beneath it.

Use the Sample Pack to compare printed colour on coated, uncoated, coloured and finished surfaces.